Remove Linux release CI job

The build was run to prove it works, but that happens in the CI job anyway, so it's just a maintenance burden.

.github/workflows/release.yml

@@ -35,78 +35,6 @@ jobs:
             - [API](https://loot-api.readthedocs.io/en/latest/api/changelog.html)
             - [Metadata Syntax](https://loot-api.readthedocs.io/en/latest/metadata/changelog.html)
 
-
-  linux:
-    runs-on: ubuntu-24.04
-    needs: create_release
-
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - name: Cache cargo
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
-
-      - name: Download Boost
-        id: get-boost
-        run: |
-          BOOST_BASENAME=boost_${BOOST_VERSION//./_}
-          wget https://archives.boost.io/release/${BOOST_VERSION}/source/${BOOST_BASENAME}.tar.gz
-          tar -xf ${BOOST_BASENAME}.tar.gz
-
-          echo "root=${BOOST_BASENAME}" >> $GITHUB_OUTPUT
-
-      - name: Install APT package dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y --no-upgrade \
-            cbindgen \
-            doxygen \
-            language-pack-el \
-            language-pack-tr \
-            libtbb-dev \
-            libicu-dev
-
-      - name: Run CMake
-        run: |
-          mkdir build
-          cd build
-          cmake .. -DBOOST_ROOT="${{ steps.get-boost.outputs.root }}" -DCPACK_PACKAGE_VERSION="${{ needs.create_release.outputs.git_tag }}"
-          make all
-
-      - name: Run tests
-        run: |
-          cd build
-          ./libloot_internals_tests
-          ./libloot_tests
-
-      - uses: actions/setup-python@v5
-        with:
-          python-version: '3.10'
-
-      - name: Install packages for building docs
-        shell: bash
-        run: |
-          pip3 install --user -r docs/requirements.txt
-          echo "$HOME/.local/bin" >> $GITHUB_PATH
-
-      - name: Build docs
-        run: sphinx-build -b html docs build/docs/html
-
-      - name: Build archive
-        run: |
-          cd build
-          cpack
-
   windows:
     runs-on: windows-2019
     needs: create_release